High-tension rectifying switch



March 9 1926. 1,576,382

H. F. WAITE HIGH TENSION RECTIFYING SWITCH Filed June 25, 1921 gm 34MPleas M'Qr. 9,f1 92. I

. sion'Rectifying Switches, of which the fol- N ED STATES my 1'. warm,on NEW YORK, u. 1r. j

. 1,576,332 PATENT OFFICE.

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Heretofore it has been-common tomakc such switches so that they canrectify high tension currents from thirty thousand to 7 one hundred andfifty thousand volts.

' partially The object of my'invention .is to provide. a switch of thischaracter which can rect1- fy currents of a much higher tension, saythree hundred thousand volts, more orless. This object is accomplishedby 'my 1n vention,' one embodimentof which is hereinaftermore-particularly set forth.

For a 'more detailed description of my invention, reference is to be.had to the accompanying drawings, formlng a part hereof, in which thefigure is a perspective'view,

diagrammatic, showing my mprovedswitch and the connections therew th.

In systems involving a high. tension switch, it is common to use eitheran alter-. nating or a direct current, as may be convenient. Where analternating current is used a synchonous motor. is employedand where adirect current is employed 1t 1s customary to use'an inverse'rotaryWl'llCll transforms the direct current into an alter. nating current.vIn the embodiment of ,my invention herein shown and described, analternating currentis em loyed, it being understood that corresponingchanges W111 be made where a-direct current is used.

My improved switch 1 has two high ten- 7 sion wires 2 and .3respectively, which run to the high tension winding 4 of a transformer 5which has its primary or low tension winding 6 connected to the lead inwires 7 and 8 in the conventional manner. These wires 7 and 8 are alsoconnected by suitable wires 9 andlO to a pair of synchronous motors 11and 12 which are mounted on a common base 13. For starting these motors,the wire has a starting box 14 in circuit in the conventional manner.

These motors 11 and 12 have parallel armatures 15 and 16, respectively,which run to insulation couplings 17 and 18 which carry the shafts 19and- 20 which have their other ends mounted in suitable supports 211921. Serial no; 480,4t1l

and 22, respectivel which rise from the base 13. The sha 19 and 20 arepreferably 'made of some insulating material and each shaftis'jprovided'with two cross conductors which are placed as indicated, at

right angles, the shaft 19 carrying the 'cross conductors 23 and 24 andthe aft 20 carrying the cross conductors 25 and 26. These crossconductors are so arran ed and disposed that they connect throng twostandards at the center with-the, two elon ated standards at the sides,the center stan ards '27 and'28 being connected with the high tensionwires 2 and 3, respectively, and the side standards 29 and 30 beingconnected with the high tension wires 31 and'32, respectively,which areconnected to an X-ray tube 33 and the spark gap points 34 and 35 whichmay be mounted in any desired manner and are generally separatedby a gapof something like twenty inches so as to provide for the high tension ofthe apparatus The standards 29 and 30 are mounted on the base 13 and arecarefully insulated therefrom and the cross conductors 23, 24, 25 and 26are insulated by their-respective shafts 19 and 20. The X-ray tube 33 isa very large and powerful tube which has its anode 36 connected to thewire 31 audits cathode 37 connected to the wire 32.

In view of the-foregoing, the operation of my improved apparatus will bereadily understood. For the moment the terminal '28 is assumed to bepositiveand closesto the cross conductor 24 through which electrictweenthe conductor 24 and u right 28, and from thence it jumps 9. secondspark gap to the conductor 29 and from there passes through the wire 31to the anode 36 and from there through the tube 33 to the cathode 37 andthence along the conductor 32 to the standard 30 and from there throughthe cross conductor 25 after jumping the spark gap and thence throughthe spark gap to the standard 27. As the motors 11 and 12 aresynchronous motors, when the phase changes the cross conductors alsochange so that thewire 31always has a positive connection and the wire32 has a negative.

- The gap between the uprights 27 and 28 should be more than twentyinches and so should the ga between the center standards 27 and 28 and.the side standards 29 and 30 embodiments of my invention, it is obviousthat it. is not restricted thereto, but that it is broad enough to coverall structures that come within the scope of the annexed claim.'

What I claim is: X 1

In an alternating current rectifying switch for high tension currents, apair of spaced, centrally located high tension standards, a pair of hi htension standards located one at each side of the plane of the centralstandards, a pair of synchronously driven shafts, one between the saidcentral standards and each side standard, each of which is provided witha pair of suitable cross conductors so arranged and dis osed that on i htension.

standards while the other of, said central high tension standards isconnected to the 0 er side standard so thatjeachside standard willalways have the same potential when the apparatus is in use and will beconnected s nc-hronously to the center standards an long spark gaps maybe main tained so as to prevent a short circuitin of a tube or otherdevice to which the switch is connected. a

In testimony whereof, I have hereunto set my hand this 24th day of June,1921.

HARRY F. WAITE.

